Taxa Count: 66

HYDROBIIDAE

Amnicola decisus

Amnicola limosus

Birgella subglobosus

Cincinnatia integra

Cincinnatia monroensis

Clappia umbilicata

Cochliopina riograndensis

Fluminicola

Fluminicola fuscus

Fluminicola seminalis

Fluminicola tenuis

Fluminicola virens

Fontigens aldrichi

Fontigens nickliniana

Gillia altilis

Hoyia sheldoni

Hydrobia

Lepyrium showalteri

Littoridina

Littoridina crosseana

Littoridinops tenuipes

Lyogyrus granum

Lyogyrus pilsbryi

Lyogyrus walkeri

Marstonia lustrica

Marstonia olivacea

Notogillia wetherbyi

Potamopyrgus antipodarum

Probythinella emarginata

Pyrgulopsis bernardina

Pyrgulopsis californiensis

Pyrgulopsis intermedia

Pyrgulopsis nevadensis

Pyrgulopsis robusta

Somatogyrus

Somatogyrus aureus

Somatogyrus biangulatus

Somatogyrus constrictus

Somatogyrus coosaensis

Somatogyrus crassilabris

Somatogyrus crassus

Somatogyrus currierianus

Somatogyrus decipiens

Somatogyrus depressus

Somatogyrus excavatus

Somatogyrus georgianus

Somatogyrus hinkleyi

Somatogyrus humerosus

Somatogyrus integra

Somatogyrus nanus

Somatogyrus obtusus

Somatogyrus pennsylvanicus

Somatogyrus pilsbryanus

Somatogyrus pumilus

Somatogyrus quadratus

Somatogyrus strengi

Somatogyrus substriatus

Somatogyrus tennesseensis

Somatogyrus tryoni

Somatogyrus walkerianus

Somatogyrus wheeleri

Tryonia clathrata

Tryonia diaboli

Tryonia imitator

Tryonia protea

Unidentifed